-- (NSString *)stringify {
- return [[NSString alloc] initWithFormat: @"cfg~%@", self.config.name];
++ (NSString *)serializationCode {
+ return @"mapping";
+}
+
+- (NSDictionary *)serialize {
+ return _mapping
+ ? @{ @"type": @"mapping", @"name": _mapping.name }
+ : nil;